184 research outputs found
Track reconstruction by GPU in 3D particle tracking detectors
No full text3D detectors for high-energy physics have always needed large computing power. Its availability has sometimes determined the statistics and performance of experiments. The increasing specific computing power of GPUs in recent years offers new opportunities for this field of application that should not be missed. The paper shows a novel algorithm that supports, as a by-product of speed, wider angular acceptance with respect to established techniques based on CPUs. While the algorithm has been developed in the environment of nuclear emulsions, it has been conceived from the very beginning as a tool for general tracking in 3D detectors. The overall logic can apply to many operational contexts in which tracking occurs in high combinatorial background. The performances of the algorithm are evaluated from different points of view, describing the details of the computing technique that are common to tracking problems and discussing measurements and data from a test-beam exposure. Computing speed has been evaluated on a broad variety of hardware, investigating an approximated scaling formula
Le chiavi del Paradiso. Primato petrino e devozione mariana di Sisto IV tra Cappella Sistina e S. Maria della Pace
No full textIl volume è strutturato in due parti distinte con una postfazione, un indice dei nomi e n. 55 Tavole a colori fuori testo, valide per entrambe le parti del volume. I. PARTE (di Lorenzo Cappelletti) A partire dalla esplicita indicazione che l’ignoto architetto, collocato sul fianco destro dell’affresco sistino della Consegna delle chiavi di Perugino, fa dell’edificio a pianta centrale che campeggia sullo sfondo, viene operata una completa rilettura iconografica e iconologica dell’intero affresco. Tenendo conto di tutta la migliore bibliografia sul tema e grazie anche alla considerazione di fonti inedite o mai considerate in relazione a tale affresco –– vengono riletti in particolare i due episodi evangelici sullo sfondo, la teoria dei dodici apostoli e dei personaggi dell’attualità di fine Quattrocento e soprattutto il gesto della consegna delle chiavi a Simon Pietro da parte di Gesù.
La rilettura si allarga necessariamente anche alla Punizione di Core, Datan e Abiram, l’affresco di Botticelli posto in chiave tipologica dirimpetto alla Consegna delle chiavi, e alla serie dei 30/32 papi affrescati nel cleristorio.
Lo studio non manca di offrire inoltre spunti per una comprensione più adeguata anche degli altri affreschi quattrocenteschi della sistina. II PARTE (di Simona Benedetti) Nell’ambito della revisione di lettura iconologica e iconografica dell’affresco della Consegna delle chiavi di Perugino nella Cappella Sistina, svolta da Lorenzo Cappelletti, si torna a riflettere anche sul significato dell’architettura dell’edificio rappresentato al centro dell’affresco. In questo senso nel contributo di Simona Benedetti, in primo luogo, si ripercorrono i riferimenti alla trattatistica quattrocentesca in materia di edifici sacri, che possono aver influito nella determinazione dell’edificio ottagonale.
In seconda istanza, si considerano le principali fabbriche a pianta ottagonale costruite precedentemente all’edificio dipinto, che possono aver costituito un fondato riferimento per il Perugino nella Consegna delle chiavi.
In particolare tra le architetture, che possono avere avuto un’influenza determinante nella definizione iconografica della fabbrica ottagonale presente nell'affresco, la chiesa di S. Maria della Pace è quella su cui si concentra il presente studio. L'opera si realizzò nel cuore pulsante della Roma rinascimentale proprio contemporaneamente all’affresco in esame, con esso trova degli innegabili punti di tangenza e corrispondenze, sia storiche che figurative. A questo riguardo interessantissima risulta la connessione tra il motivo dell’edificazione della fabbrica e i fatti storici, i personaggi, gli eventi prodigiosi e le pratiche devozionali, che condizionarono lo svolgersi del cantiere del Templum Pacis negli ultimi anni del pontificato di Sisto IV. La storicità del gesto della consegna delle chiavi a Pietro - avvenimento che si protrae nel tempo ad ogni elezione pontificia nello spazio fisico della Cappella Sistina - costituisce la centralità del messaggio iconografico dell'affresco del Perugino in cui, anche l’architettura, insieme ai personaggi rappresentati, strutturano una narrazione reale, estranea alle simbologie decontestualizzate dall’epoca propriamente sistina. Segue una postfazione di Francesco Andreani dal titolo Enigma del Quattrocento, saggio nel quale si sviluppano considerazioni sulle personalità degli architetti e maestranze attive nella Roma del tardo Quattrocento e negli anni di inizio della fabbrica di S. Maria della Pace. Il volume si conclude con l'indice dei nomi (a cura di Gemma Fusciello)I (of Lorenzo Cappelletti) Starting from the unknown architect’s forefinger pointed to the central plan building found in the background of the Sistine Perugino’s fresco The Keys of the Kingdom of Heaven, the author offers a new interpretation of the entire fresco at both an iconographical and iconological level.
Having considered the most important studies about this fresco and taking into account a number of unpublished and unconsidered sources, the author rereads in particular the meaning of the central plan building, as well as the two Gospel episodes in the background; and he rereads also the grouping of the Twelve, along with the fifteenth century historical personages painted among them, in the foreground.
The author’s vision necessarily broodens also to comprehend Botticelli’s fresco named The Punishment of Corah, Dathan and Abiram which is placed on the opposite wall as a typological prefiguration of The Keys of the Kingdom of Heaven; and it broodens moreover to reconsider the series of 30/32 popes frescoed in the upper register of the Sistine Chapel.
The essay also offers hints for a more complete comprehension of the other fifteenth century frescoes of the Sistine Chapel.
II. (of Simona Benedetti) As part of the review of iconological and iconographic reading about the fresco of the “Delivery of the keys” by Perugino in the Sistine Chapel, conducted by Lorenzo Cappelletti, you go back and think about the significance of the building architecture depicted in the center of the fresco. In this sense, the contribution of Simona Benedetti, first, retraces the references to the fifteenth-century treatises concerning sacred buildings, which may have affected the determination of the octagonal building. Secondly, we consider the main factories octagonal building constructed previously painted, that may have been an established reference for the Perugino in the “Delivery of the keys”. Especially between architectures, which may have had a decisive influence in defining the iconographic factory octagonal present in the fresco, the church of St. Mary of Peace is the one on which this study focuses. The work was realized in the heart of Renaissance Rome just simultaneously fresco concerned, although it is undeniable points of contact and correspondence, both historical and figurative. In this regard are interesting connections between the reason of building the factory, the historical facts, the characters and the miraculous events and devotional, which has conditioned the unfolding of the construction site of the Templum Pacis in the last years of the pontificate of Sixtus IV. The historicity of the act of handing over the keys to Peter, that continues over time in the physical space of the Sistine Chapel, is the centrality of the iconographic message of the fresco by Perugino; so even the architecture, along with the characters represented, the real narrative structure, far from to the symbolism belonging to the Sistine period properly
GPU-based quasi-real-time Track Recognition in Imaging Devices: from raw Data to Particle Tracks
No full textNuclear emulsions as tracking devices have been used by recent experiments thanks to fast automatic microscopes for emulsion readout. Automatic systems are evolving towards GPU-based solutions. Real-time imaging is needed to drive the motion of the microscope axes and 3D track recognition occurs quasi-online in local GPU clusters. The algorithms implemented in the Quick Scanning System are sketched. Most of them are very general and might turn out useful for other detecto
An architectural gem
No full textThe School of Mathematics is one of Gio Ponti's major achievements and certainly one of the highest expressions of Italian Modernism. This chapter explains the main architectural and urban features of the building and it's context within the university campus of Rome. To the well know exceptional library, a unique example in the history of architecture, the author has dedicated a brief description, highlighting the role of the stained glass window originally designed by Ponti for this room and for the main facade of the building. The chapter closes with a thorough telling of the life of the building, from construction to nowadays, describing the many extensions, alterations and modifications. which have blurred the original "crystal-like" shape designed by Gio Ponti
Fictionality and Literature: Core Concepts Revisited
No full textAuthor / Henrik Zetterberg-Nielsen -- Narrator / Sylvie Patron -- Plot / Wendy Veronica Xin -- Character / H. Porter Abbott -- Consciousness / Maria Mäkelä -- Metaphor / Greta Olson -- Paratext / Louise Brix Jacobsen -- Intertextuality / Rikke Andersen Kraglund -- Metafiction and metalepsis / Richard Walsh -- The novel / Catherine Gallagher and Simona Zetterberg-Nielsen -- Poetry / Lasse R. Gammelgaard -- Literary nonfiction / James Phelan -- Ethics / Jakob Lothe -- Social justice / Susan S. Lanser.Item embargoed for five year
L’architetto progettista della nuova Collegiata e la cultura architettonica lombarda
No full textl contributo, costituisce il terzo capitolo del volume ed è strutturato in due paragrafi in cui si torna a riflettere sull’attribuzione del progetto architettonico dell'interessantissima Collegiata del San Giovanni Battista Morbegno, edificata tra il 1680 ed il 1714, oggi quasi completamente restaurata dalla Fondazione Isabel & Balz Baechi. Necessariamente in questo contesto si riprendono gli studi già svolti da Simona Benedetti, pubblicati nel 2019, in cui si è individuato il progettista dell'opera valtellinese nella persona di Gerolamo Quadrio, architetto del Duomo di Milano dal 1658 al 1679, anno della sua morte. Qui si sviluppano ulteriori analisi riferite all’attività del progettista milanese, che ha concepito la splendida spazialità architettonica tra le ultimissime opere della sua carriera. Vengono proposte nell’ultimo paragrafo puntuali analisi comparative tra le sue opere, individuando tra queste le più significative per l’attribuzione del progetto della Collegiata di San Giovanni Battista a Morbegno.The research represents the third chapter of the volume specifically dedicated to the history of the church of St. John the Baptist in Morbegno. Built between 1680 and 1714, this celebrated ‘Collegiata’ had been recently restored by the Isabel & Balz Baechi Foundation, which also supported a historical in-depth analysis. The paper consists of two paragraphs, in which we return to reflect on the attribution of the architectural design. Starting from the discoveries carried out by the Author in 2019 and already published, in which the designer of the Valtellina church was identified with Gerolamo Quadrio, chief architect of Milan’s Cathedral from 1658 to 1679, this new detailed work discusses the whole activity of the professional, who seemed to have conceived the architectural spatiality of St. John the Baptist at the very end of his career. By comparing his projects, it emerges the strictly existing relationship between his ‘modus operandi’ and the Morbegno church, confirming his participation in the invention and the following construction
Study of the hadronic current in the neutrino interactions of the OPERA experiment
No full text2011 - 2012The OPERA experiment was designed to observe the appearance of the vr in a pure
beam ofvll (CNGS). The evidence ofthe appearance signal is provided by the detection
of the daughter particles produced in the decay of charged lepton T.
The hadronic decay channel has the largest branching ratio; in order to proficient1y use
it for neutrino oscillation detection, one needs a good knowledge ofthe hadronic current
in the OPERA experimental setup. The present work shows the data-acquisition and the
comparative analysis of a "minimum-bias" sample of interactions to the standard
simulation used in OPERA.
The first chapter of this thesis work is an overview of neutrino physics; in the final part
of the chapter some neutrino experiments are described.
The second chapter focuses on the OPERA detector. The main components of the
detector are explained as well as the physical performance of the experiment.
Data-taking is the subject of the third chapter; the scanning procedure is shown,
followed by the technique used to estimate the momentum of particles in the ECC.
Finally, the fourth chapter presents the data analysis. [edited by Author]XI n.s
Estimating Covariance via Fourier Method in the Presence of Asynchronous Trading and Microstructure Noise
No full textWe analyze the effects of market microstructure noise on the Fourier estimator of multivariate volatilities. We prove that the estimator is consistent in the case of asynchronous data and asymptotically unbiased in the presence of various types of microstructure noise. This result is obtained through an analytical computation of the bias and the mean squared error of the Fourier estimator and confirmed by Monte Carlo experiments. A comparison with several covariance estimators is performed. (JEL: C14, C32, G1) Copyright The Author 2010. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: [email protected], Oxford University Press.
Agenda di un parlamentare anglofilo: gli Studi costituzionali di Emilio Broglio (1861)
No full textThe chapter focuses on a short treatise published by the Italian right wing liberal Emilio Broglio in 1861. At the time Broglio was a deputy of the first national Parliament, having a previous experience in the sub-alpine Legislature. In his work he questions the elected Chamber's rules of procedure, which he believes inadequate to the conspicuous legislative action the institution must take to answer the growing Nation's needs. Looking for an alternative discipline, he checks English parliamentary model and on that basis designs a reform that would be suitable to the Italian case. So the essay qualifies both as a constitutional study and an operating proposal. Thanks to Broglio's initiative, it actually inspired some minor procedure reform but it was shortly overcome by the liberal party's decision to abandon the idea nourished by Cavour of a strict imitation of English representative institutions. Despite this failure, Broglio's work testifies a mature insight in modern parliamentary functioning, somewhat unexpected of the Lombard political culture to which the author, due to his origins, belonged
The role of language typology on L2 acquisition and learning, Special Issue
No full textThis special issue of the I-LanD Journal aims to explore the role of
language typology on second language acquisition (SLA) and learning.
The contributions to this special issue address the question as to
whether and in which ways typological contrasts of languages play a
crucial role in how events are expressed in adult second language (L2).
In this regard, Slobin (1996), by means of his Thinking for Speaking
hypothesis, argues that differences across languages predispose native
speakers to view and to talk about events differently and this seems to
have important consequences in discourse conceptualisation and
production even at very advanced levels of L2 proficiency.
Research on typological variation across languages has been
conducted for decades and important advances have been made in the
domain. For instance, it is well known that Germanic vs Romance
native speakers differ in the ways they conceptualise and verbalise
events. Consequently, speakers diverge in the preferred perspective
selected with respect to conceptual domains such as aspect, time,
motion, modality, both at the sentence level (von Stutterheim 2003)
and at discourse level (Klein/von Stutterheim 2002; Carroll/Lambert
2006) and this is partly due to the typological properties of languages.
Most studies show the challenges adult L2 learners face in restructuring
these patterns in the process of acquisition of another language with a
different set of patterns. This hard task for learners implies full or
partial crosslinguistic influence (CLI, cf. McManus 2022 for a more
recent overview). The latter, often used interchangeably with transfer
(cf. Odlin 1989, 2003, 2005), refers to the search for similarities/
differences between one’s prior linguistic knowledge (from the L1 or
any other previously acquired languages) and learning, knowledge
and use of the new language (Jarvis/Pavlenko 2010: 1). CLI is a key
component of the L2 learning process, and it seems particularly
relevant when learners try to map L2 words into the concepts of their
L1. In this sense, SLA can be seen as cognitive restructuring (HijazoGascón 2021: 2), since learners can experience a cognitive dissonance
between the L2 lexical items and the L1 notions. The question of
whether L1 typological properties may be transferred or not in the L2
discourse has been largely explored for the cognitive domains of time
(e.g. von Stutterheim 2003 for ongoingness vs boundness; McManus/
Marsden 2017, Giuliano/Anastasio 2021a for time and aspect) and
Introduction: The Role
of Language Typology
on L2 Acquisition and Learning
Simona Anastasio
University of Toulouse Jean Jaurès, France
[email protected]
Patrizia Giuliano
University of Naples ‘Federico II’, Italy
[email protected]
DOI: 10.26379/IL2022002_000
4 I-LanD Journal. The role of language typology on L2 acquisiti on and learning · n. 2/2022 · eISSN 2532-764X
Simona Anastasio - Patrizia Giuliano
space (e.g. Cadierno/Ruiz 2006; Hendriks et al. 2008; Carroll et al.
2012; Hijazo-Gascón 2021) and, to a lesser extent, for syntax (e.g.
Giuliano/Anastasio 2021b). More recently, research has also focused
on the co-speech gestures in the expression of events. As such, the
literature shows that the ways L2 learners’ gestures can reveal how
they keep on gesturing as in their L1 rather than in the L2 native-like
manner (e.g. Gullberg 2009; Stam 2018, 2023).
In spite of the evident role of inter-typological contrasts during the
process of SLA (along with other important variables such as the L2
input exposure, the L2 proficiency level, individual factors) in terms of
CLI, there is little research that focuses on the impact of intratypological variation, i.e. typological differences or similarities
between languages of the same type (except for Ibarretxe-Antuñano
2009, 2015; Anastasio 2018, 2019, 2021, 2022). Additionally, the
impact of language typology is still far from being fully understood
and this is due to several reasons: a) native speakers’ preferences go
beyond the clear-cut typological classification when encoding the
intended message (Slobin 2006; von Stutterheim et al. 2009; Beavers
etal. 2010); b) most studies look at learners with an L1/L2 combination
belonging to different genetic and typological families and very few
consider the impact of the L1 when the learners’ languages in contact
are typologically close (except for Benazzo/Andorno 2017; Anastasio
2019, 2021, 2022; Saturno 2020; Hijazo-Gascón 2021) and can,
however, lack equivalent form-function categories.
This special issue brings together recent empirical research on
inter- and intratypological contrasts and their role on L2 acquisition
and learning. Specifically, drawing upon a functional perspective, this
special issue aims to add to the SLA field by offering recent empirical
studies relying on original data, involving: different types of tasks;
quantitative, qualitative and mixed-methods approaches; learners at
all stages of learning.
The key themes under focus explore morphological, syntactic, and
semantics differences between languages with their consequences for
framing events in L1 as well as in L2. In particular, three main domains
are investigated: a) affectedness; b) differential object marking; c)
space (static and dynamic location events). The data collected
represent a diversified selection of L1-L2 pairs: a) learners whose L1
and L2 are typologically and genetically closely-related (Isabel Repiso;
Jacopo Saturno); b) learners with an L1-L2 combination considered as
typologically distant (Christina Piot, Maria Hellerstedt); c) learners
whose L1 and L2 belong to different typological types but present
similarities in the linguistic devices for conveying events (Delia
Airoldi).
The first paper of this special issue deals with a still underexplored
domain in SLA functional approach, i.e. affectedness within Romance
languages. Specifically, Isabel Repiso examines the syntactic and
morphological realisation of affected arguments across two
typologically and genetically-related languages, French and Spanish,
and in L2 French of Spanish learners (A2-B2 levels of CEFR). The
crosslinguistic findings show different morpho-syntactic preferences
in French and Spanish productions to mark affectedness. As to L2
I-LanD Journal. The role of language typology on L2 acquisiti on and learning · n. 2/2022 · eISSN 2532-764X 5
Introduction: The Role of Language Typology on L2 Acquisition and Learning
results, CLI arises in terms of under/overuse of non-native like use of
L2 structures especially at less advanced stage. The author hypothesises
that, when confronting to the L2 verbalisation of a universal domain,
learners tend to rely on L2 constructions similar to those of the L1 as
a strategy to compensate lack of knowledge regarding TL uses.
Jacopo Saturno’s contribution also explores the morphosyntax
domain, by focusing on the differential object marking in nominal
morphology in L2 Polish of East Slavic learners (L1: Belorussian,
Russian, Ukrainian) of A1-B1 proficiency (CEFR). By means of a
quantitative study, the author confirms that CLI and universal
tendencies, such as markedness, may coexist as explanatory factors in
the differential object marking in an intercomprehension situation.
The subsequent three papers concern the role of typological
diversity in the expression of space in language. Christina Piot focuses
on multimodality in motion event construal. She first examines how
native speakers (French vs Dutch) express the same motion events in
their speech and co-speech gestures and then to what extent
multimodal and inter-/intralinguistic differences impact performances
of CLIL French learners of L2 Dutch (A1-B2 proficiency levels).
Participants were recruited in Belgium, whose context is not
particularly favourable for monolingual speakers, since it offers three
official languages: Flemish/Dutch speaking; Walloon/French speaking;
and, to a lesser extent, Ostbelgien German speaking. Analysis of
language use and gesture by native speakers shows not only
prototypical features of typological classifications, but also patterns
which are less typical of their language-category. As for L2 performance,
learners have their own thinking-for-speaking pattern which is inbetween the French and the Dutch tendencies. Moreover, the study
also highlights that gestures give information on event
conceptualisation.
With respect to a different language combination, Delia Airoldi’s
contribution also focuses on the expression of motion. Specifically, the
author compares the productions of native speakers of Italian and
German to the productions of German learners of L2 Italian
(intermediate and advanced) by using different types of stimuli. The
aim is to study inter- and intra-linguistic differences between German
and Italian and to see whether learners’ productions are target-like in
L2 motion event construal or still influenced by the L1 patterns.
In the final paper, Maria Hellerstedt discusses two types of space:
location and caused motion, as described by French and Swedish
native speakers and by intermediate and advanced French learners of
L2 Swedish. The larger goal is to investigate the semantic components
selected to describe static and dynamic location in L2 Swedish, namely
by means of posture verbs, and to identify learners’ strategies
(avoidance, over-using) justifying learners’ linguistic choices. On the
one hand, the paper shows the developmental trajectory of L2 Swedish
learners in the use of posture verbs in spatial events. On the other
hand, it highlights traces of CLI and other interlanguage strategies in
producing idiomatic posture verbs.
Taken together, the above contributions bring a timely update within
the research field of typology and L2 acquisition and learning by
6 I-LanD Journal. The role of language typology on L2 acquisiti on and learning · n. 2/2022 · eISSN 2532-764X
Simona Anastasio - Patrizia Giuliano
building on and complementing previous literature on the subject. In
particular, these papers provide empirical studies on different
linguistic domains, while offering new avenues for future research on
the issues under investigation in this special issue
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